Toddlers can be an inquisitive lil' group. They show no fear as they test mom's — and society's — boundaries. For some, the exploring doesn't end at nap nor nighttime. Place one of these feisty tots in his crib and watch how quickly he'll find a way to escape from the confines of his bed. If your lil' one — or his mama — isn't quite ready to make the move to a bed, here are five easy tricks for keeping him put until everyone is prepared.